Sondhi, S., Basu, D.N., Sondhi, Y. & Kunte, K. (2020) A new species of Metallolophia Warren, 1895 (Lepidoptera: Geometridae: Geometrinae), and notes on M. opalina (Warren, 1893), from eastern Himalaya, India. Zootaxa, 4838 (2), 289–297.